Optimal abrasive mass flow rate for rock erosion in AWJ machining
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F21%3A00533249" target="_blank" >RIV/68145535:_____/21:00533249 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/chapter/10.1007/978-3-030-53491-2_9" target="_blank" >https://link.springer.com/chapter/10.1007/978-3-030-53491-2_9</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-030-53491-2_9" target="_blank" >10.1007/978-3-030-53491-2_9</a>
Alternative languages
Result language
angličtina
Original language name
Optimal abrasive mass flow rate for rock erosion in AWJ machining
Original language description
Erosion process of the Abrasive Water Jet (AWJ) machining on a rock material depends on various parameters. A brittle rock material is removed predominantly by the deformation wear. Abrasive grains can enhance the machining since their hardness and therefore material removal is better than work of pure water. However, to this day, determination of an optimal dosage of the abrasive matter entering into the mixing chamber was rather neglected. Based on the laws of conservations of momentum and energy combined with some empirical facts, it is possible to derive an equation for erosion of the material and subsequently another relation that provides estimation of the optimal mass flow rate of an abrasive matter. The main equation for erosion consists of six experimental coefficients, for an intensive AWJ only four, describing the effectivity of the water jet kw and abrasive jet ka impacting the material. It seems that the energy that is used for erosion is very small and the ideal dosage of the abrasive material is approximately Ṁa ≈ ṁw·(1 − 2kw/ka), where Ṁa and ṁw are the abrasive and water mass flow rates. Such an equation could be used for setting of AWJ machines. The economical optimum (eo) for cutting is proposed via the relation eo = E/Emax − R/Rmax, with the erosion E and its maximum value and the resistivity R and its maximum value.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Advances in Water Jetting
ISBN
978-3-030-53490-5
ISSN
2195-4356
e-ISSN
2195-4364
Number of pages
10
Pages from-to
81-90
Publisher name
Springer
Place of publication
Cham
Event location
Čeladná
Event date
Nov 20, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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